He says, "This book tells a harsh and forbidding story and makes one wonder just exactly what its relation to truth is.

他这样写道：,“这书讲的是一个既冷血,又令人恐惧的故事,将人置于一个总想知道,它与现实关联的状态“

耶鲁公开课 - 1945年后的美国小说课程节选

So when you go ahead and draw these on your problem-sets or on your exams, it's a good idea to put these dashed lines in, both for you and for people reading it to see exactly where your molecular orbitals are coming from.

所以当你在做课后题,或者考试的时候要画这些图时，最好把这些虚线放进去，既方便你自己也方便别人知道,这些分子轨道是从哪里来的。

麻省理工公开课 - 化学原理课程节选

We don't know the time and we don't know how high it's rising so you can ask, "How am I supposed to deal with this problem?"

我们既不知道时间,又不知道最高点的高度,那你就会问了,这道题该怎么做呢

耶鲁公开课 - 基础物理课程节选